Reinforcing means for concrete structures.



E. R. BOYLE & W. B. UPTON. REINFORGING MEANS FOR CONCRETE STRUCTURES.

Patented June 22. 1909.

Z SHBBTS-SHEET 1.

APPLICATION FILED MAR. 25,1908.

arrow E. R. BOYLE & W. B. UPTON. REINFORGING MEANS FOR CONCRETESTRUCTURES.

APPLICATION FILED MAR. 26, I908. 925,989.,

Patented June 22, 1909. 2 sHriTs-snm a.

L 34, W-fib f M 35 1 ELDRIDGE a. BOYLE AND WILLIAM B.

UPTON, OF WASHINGTON, DISTRICT OF COLUMBIA.

BEINFDRCING KEANE FOR CONtfRETE EiTRUCTURES.

Specification of Letters Patent.

Patented June 22, 1909.

Application filed March 25, 1908. Serial No. 423,158.

1T0 alt whom it may concern:

Be it known that we, ELDRiDGE R. BOYLE and WILLIAM B. UPTON, citizens ofthe United States, residing at Washington, in the District of Columbia,have invented a new and useful Reinforcing Means for ConcreteStructures, of which the following is a specification. v

: The primary object of this invention is to provide nove means of asimple nature, whereby an effective reinforcing structure for concreteis secured, in which the portions of the members weakened by openingsformed therein, are reinforced, and said reinforcemerits constituteanchors in the concrete.

While the invention is in the nature of an nnprovemnl; on the meansdisclosed in the platent granted'to us on September 3, 1907,

0. 865,231, there are certain features that may perhaps be employed inother structures of an analogous character.

Another object is'to provide a stress bar that can eel-easily rolled bythe ordinary machinery, and when placed in position, the concrete can beefl'ectively and readily packed about it.

In the drawings :-Figure 1 is a side elevation of a portion of a bar,and illustrating one embodiment of the invention. Fig. 2 is a crosssectional view therethrough. Fig. 2 is a detail sectional view that isdiagrammatic in its character, illustrating the relative thicknessof'the lugs andfin. Fig. 3 is a side elevation, the reinforcing armsbeing shown in section. Fig. 4 is a horizontal sectional view. Fig. 5 isa side elevation of a-difierent embodiment of the invention. Fig. 6 is across sectional view through the same. Fig. .7 is a side elevation," butshowing the reinforcing arms in section. Fig. 8 1s a horizontalsectional view. Fig. 9 is a side elevation of still another embodimentof the invention. Fig. 10 is a verticalsectional view thercthrough. Fig.11 is a side elevation, but showing the arms-in section. Fig. 12- is ahorizontal sectional view. Fig. 13 is a side elevation of a stilldifferent form of construction. Fig. 14 is a vertical cross sectionalview through the same. Fig. 15 is a sideeleyation with the reinforcingarms illustrated in section. Fig. 16 is a horizontal sectional view.

Similar reference numerals designate corresponding parts in all thefigures of the drawmgs.

teferring first to the embodiment dison opposite sides of said membersare oilsct, and rest upon the cause of their peculiar relation,

closed in Figs. 1-4 inclusive, it will be noted that a stress bar 17 isemployed comprising a body 18 hexangular in cross section and hav-' inga sectional upsti'inding longitudinally disposed fin 19 that projectsfrom one of the edges or angles of said bar. This iin is provided atintervals with transverse openings 20 that are circular and receive thebowed portions 21 of substantially U-shaped reinforcing arms. T hesearms are formed of rods assing through said pcnings 20 and doub ed,forming spaced members 22 located the fin. Portions 23 of body 18 of thebar, thereby supporting. said members 22 in upstanding angular relationto the bar, shown. In Fig. 11 of the drawings of our former patent isshown a modification, which was not claimed specifically and could notbe so claimed in said patent for the s )eciiic claims were based onanother form of t e invention. It is our intention in the resentapplication to claim thisform, and tie description thus far givenapplies equally well to the construction shown in Fig. 11 of the saidpatent, with the exec )tion that around bar is there shown while ahexagonal bar is herein described.

It will be evident that the formation of the openings 20 in the fin 1.9weakens the stress bar 17 to some extent, and in order to overcome thisweakness, sets of lugs 24 are provided on opposite sides of the body 18in vertical ulincmcnt with thoopcnings, but of considerably greaterlength than the same. In practice, each of these lugs is substantiallyhalf the thickness of the lin, and the cross section of a set of lugslocated beneath one of the openings equals the cross section' of such 0)enmg, as Will be evident by reference to ig. 2 (onsequcntly the amountof metal taken out of the bar by the formation of the openings is placedupon the body of the bar by the lugs, and as'these lugs extend on opiosite sides of the openings a considerable distance, the metal added tothe bar is several times in excess of the amount taken from it by theformation of the opcnings. The location of the lugs directly beneath theopenings and'extending some distance beyond the opposite ends of theopenings, is an important factor in enabling the bar to resist thestrains to which it is subjcctcd when in use. But furthermore bethcyalso perform another function, inasmuch as they constitute anchors inthe concrete.

The particular shape of the bar is also important for not only can thisbar be produced at comparatively small cost, but 1t is such that theconcrete can be packed securely around and beneath it. 4

Adifferent embodiment of the invention is illustarated in Figs, 5-8inclusive. In this form of construction, the bar designated correspondsin all respects with the bar 17, with the exception that the openin s 26thrb gh the fin 27 are angular. The 28 oi said bar is provided with setsof combined reinforcing and anchor lugs 29.- The reinforcing arms 30 arerods that are angular in cross section and are passed through theopenings 263:, In the present embodiment, the portionspassed through theopenings are as shown at 31, so that bent horizontally, they liealongside the fin, the angular rods or'arms fitting in the angularopenings, be-

ing thereby supported, inasmuch as they cannot rotate in said openings.

Still another form of construction is illustrated in Figs. 912inclusive. In this embodiment the body 32 of the stress bar is circularin cross section, and has an upstanding central and longitudinallydisposedfin, 33 that is elliptica o enings 34. Reinforcing arms 35correspon ing tothe same in cross section,

. are passed through these openings and have engage the vbodyofterminals 36 located alongside the fin. Sets of reinforcing anchor lugs37 are provided on opposite sides of the body and corres ond in al'respects to those first described. 11 Figs. '1 8-16 still anotherembodiment of the invention is disclosed. In this form of construe:tion, the body 38 of the bar is hexangular in cross section, and has anupstanding Iongitudinal disposed fin 39' that is provided with angular oenings 40. Reinforcin arms 41 are passed't rough the openings ano haveterminals 4-2 located alongside the fin. In this structure, the lugs,instead of bein on the opposite sides are on the bottom, as lus tratedat 43, the op osite ortions' of said lugs-being angularly .isposec aswill be clear by reference to Fig. 14. Practically the same results aresecured in this form of construction as in the other, inasmuch as saidlugs not only compensate for the metal eliminated by the openings, butalso act as anchors. The preferred form of stress bar is shown in Figs.1 to 8, inclusive, in which the bar is made hexangular incrosssection-with the longitudinal fin upstanding from one of theangles. This brings the lugs 29, which are located on the o positc fiatfaces of the bar, in a substantially vertical position, and being spacedapart on the bar, they firmly concrete which is packed about the bar.

From the foregoing,

it is thought that the constructlon,

operation and many advanrovided with substantially oval or .body havingan ,disposed fin, said proportion, and minor detailsof construction,

may be resorted to Without departing from the spirit or sacrificingany-of the advantages .of the invention.

Having thus fully described our invention, what we claim as new, byLetters Patent is 1. in a structure of the character. set forth,

.the combination with a bar comprising -body having a fin, of areiniorcing arm haw ing one, portion engaged with the n in-- otherportion dis )osed longitudinally -o resting against t e body at one sideor fin, and a third portion disposed in a ular Tb relation to the secondportion and supported thereby in angular relation to the body;

2. In a structure of the character sctforth, the combination with a bar.comprising a .bodybaving a fin, said fin being provided. with an 'oening, of a reinforcing arm engaged in the opening and having angularlydisposed portions, one of which rests against the body, the other beingin angular relation to the body.

3. In a structure of the character set forth,

the combination with a bar comprising a w body having a fin, said finbeing provided with an opening, of a reinforcing arm passed through thesaid opening, then carried in substantial parallelism with the body andrest ing against the an angle thereto. a

i. in a structure of the character set forth, the combination with a barcomprising a 11 standing longitudinally fi ii being provided with asubstantially circular opening, of a reini'ore ing arm comprising a rodthat passes through the opening and is bent into substantially U-shape,forming spaced members located on opposite sides ot the fin, saidmembers each comprising angularly disposed portions, one of which restsagainst and is disposed longitudinally. of the body of the bar, theother portion being thereby supported in angular relation to the bar.

'5. In a structure of the character set forth, a stress bar having abody that is hexagonal in cross section and is provided with a singlecentral longitudinal outstanding fin at one of its angles, said finbeing of less thickness than the body and provided with perforations toreceive reinforcing arms, the two opposite faces of the body beingprovided with lugs projecting from said faces 1n spaced relation.

and in alinement with the perforations and in compensation therefor tomaintain the cross sectional area and tensile strength of the ban.

and-desire to latter, and finally bent up at thereby supported 6. In astructure of the character set forth,

the combination with a bar comprising a 'being in alincment with one ofthe openings, t

body having a longitudinally-disposed outstanding fin of less thicknessthan the. body i and provided with openings, of reinforcing arms engagedin the openings, and spaced combined reinforcing and anchor lugs locatedlongitudlnally upon the bar, each lug there being at least as many lugsas there are openings, said lugs being in compensation for the openingsto maintain the cross-scetional area and tensile strength of the bar.

7. In a structure of the character set forth, the combination with a barcomtn'ising a body having a longitudinally disposed tin of less diameterthan the body and provided with openings, of reinforcing arms engaged inthe openings, and spaced elongated coinbincd reinforcing and anchor lugslocated longitudinally upon the bar in alinemcnt with the openings andof greater length than the same'and extending beyond each end of the oenings.

8. En a structure of the character set forth, a bar comprising a bodyhaving a tin of less diameter than the body and provided with transverseopenings, and combined re|nforcing and anchor lugs located at intervalsalong the body, each of the lugs being disposed in almeme-nt with one ofthe openings and ot greater length than the same, said lugs beingarranged in sets on opposite sidesof the body, j the combined area ofeach set being greater 5 ing tin of less diameter than the body andprovided with transverse openings to l'(-t ccive reinforcing arms, andsets of spaced combined reinforcing and anchor lugs located at intervalsalong the body on opposite sides thereof, each lug being in verticalalincment with one of the openings and of greater length than the sameand extending beyond a each end of the openings.

t 10, in a structure of the character set i forth, a stress barcomprising a body having tan outstanding longitudinal tin extending;centrally of the body and provided with a transverse openings atintervals, and corresponding sets of spaced lugs locatedalong theopposite sides of the body, each set of lugs being in alineinent withone of the openings and of greater length than the same, the combinedcross section of each set being substantially equal to the cross sectionof the transverse opening formed in the tin, while the combined area ofeach set is greater than the area of the opening.

H. in a structure of the character set forth, the combination with a barcomprising a body that is substantially hexangular in cross section, anda longitudinally disposed tiu projecting centrally from one of the edgesof the body, said tin being provided at intervals with transverseopenings, of reinforcing arms having portions located in the openingsand disposed upwardly in angular relation to the bar, and sets of spacedlugs formed upon the opposite. sides of the body in alinelnent with theopenings and longer than said openings, the combined cross section ofeach set of lugs being substantially the cross section of the opening ofl the tin.

1 In testimony, that we claim the foregoing t as our own, we have heretoatlixed our signatures in the presence of two witnesses.

ELDRIDGE R. BOYLE. I WILLIAM B. UPlON.

JOHN H. SIGGERS.

: Witnesses i l E. G. Smonns.

